1. Introduction
Thank you for choosing the ZEISS Touit 2.8/12 Wide-Angle Camera Lens. This lens is engineered to deliver exceptional image quality for your Sony E-Mount APS-C sensor camera system. Its super-wide-angle diagonal field of view, combined with advanced optical design, makes it ideal for capturing expansive landscapes, intricate architecture, and detailed interiors.
Figure 1: The ZEISS Touit 2.8/12 Wide-Angle Camera Lens.
2. Key Features
- ZEISS T* Anti-Reflective Coating: Optical elements feature T* anti-reflective coating on all surfaces, ensuring superior brilliance and rich colors even in challenging lighting conditions.
- Excellent Resolution and High Contrast: Advanced optical design minimizes stray light effects, resulting in sharp images with vivid colors and minimal distortion.
- Aspherical Design: Consistent imaging performance across the entire focusing range, effectively reducing spherical and other optical aberrations.
- Smooth and Reliable Autofocus: Engineered for a robust and precise autofocus mechanism, providing optimal imaging performance.
- Floating Elements Design: Optical aberration effects are reduced to a minimum throughout the entire focusing range, ensuring consistent quality from close-up to infinity.
3. What's in the Box
Please ensure all items are present upon unboxing:
- ZEISS Touit 2.8/12 Wide-angle Camera Lens for Sony E-Mount Mirrorless Cameras
- Lens Shade
4. Setup
4.1 Attaching the Lens
- Ensure your camera is turned off.
- Remove the rear lens cap from the ZEISS Touit 2.8/12 lens and the body cap from your Sony E-Mount camera.
- Align the white index mark on the lens barrel with the corresponding white index mark on your camera's lens mount.
- Insert the lens into the camera mount and rotate it clockwise until it clicks into place. Do not force the lens.
Figure 2: Rear view of the lens, highlighting the E-Mount for proper attachment.
4.2 Attaching the Lens Shade
The included lens shade helps to prevent stray light from entering the lens, reducing flare and ghosting, and also provides physical protection for the front element.
- Align the index mark on the lens shade with the mark on the front of the lens.
- Attach the lens shade by rotating it until it locks securely into place.
Figure 3: The ZEISS Touit 2.8/12 lens with the lens shade attached.
5. Operating the Lens
5.1 Autofocus (AF)
The ZEISS Touit 2.8/12 lens features a fast and accurate autofocus system. Ensure your camera's focus mode is set to AF (Autofocus) for automatic focusing. The lens is designed for smooth and quiet operation, making it suitable for both photography and video recording.
5.2 Manual Focus (MF)
For precise control, switch your camera's focus mode to MF (Manual Focus). Rotate the focus ring on the lens barrel to adjust focus. Your camera's focus peaking and magnification features can assist in achieving critical focus.
5.3 Aperture Control
The aperture (f/2.8 to f/22) can be controlled directly from your camera body. Adjusting the aperture changes the depth of field and the amount of light entering the lens. A wider aperture (smaller f-number like f/2.8) creates a shallower depth of field, ideal for isolating subjects. A narrower aperture (larger f-number like f/22) provides a greater depth of field, suitable for landscapes.
Figure 4: Close-up of the lens's front element, showcasing the optical design and coatings.
6. Media Examples
6.1 Product Videos from Seller
Yongnuo 11mm Lens Overview
Video 1: This video provides an overview of the Yongnuo 11mm lens, demonstrating its features and performance, which can be comparable to other wide-angle lenses like the ZEISS Touit 2.8/12.
7artisans 10mm F2.8 II Fisheye Lens
Video 2: This video showcases the 7artisans 10mm F2.8 II fisheye lens, illustrating its wide field of view and optical characteristics, relevant for understanding extreme wide-angle performance.
Meike 12mm f2.0 Lens Review by Marc Alhadeff
Video 3: A detailed review of the Meike 12mm f2.0 lens by Marc Alhadeff, offering insights into the performance and use cases of a similar wide-angle lens.
Viltrox AF 15mm F1.7 Air APS-C Wide Angle Lens
Video 4: This video highlights the Viltrox AF 15mm F1.7 Air APS-C wide-angle lens, demonstrating its compact design and suitability for various shooting scenarios, relevant for users of APS-C wide-angle lenses.
7. Maintenance
7.1 Cleaning the Lens
- Use a soft, lint-free cloth or a lens brush to remove dust and loose particles from the lens surfaces.
- For stubborn smudges or fingerprints, apply a small amount of lens cleaning fluid to a clean lens cloth and gently wipe the lens in a circular motion.
- Never use abrasive materials or harsh chemicals, as these can damage the lens coatings.
7.2 Storage
- When not in use, always attach the front and rear lens caps to protect the optical elements.
- Store the lens in a cool, dry place, away from direct sunlight and extreme temperatures.
- If storing for an extended period, consider using a dehumidifying agent to prevent mold growth.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Lens not attaching to camera | Incorrect alignment or obstruction | Ensure index marks are aligned and rotate gently until it clicks. Check for any debris on the mount. |
| Autofocus not working | Camera set to Manual Focus (MF) or poor lighting conditions | Switch camera to Autofocus (AF) mode. Ensure sufficient light for the AF system to operate. |
| Images are blurry | Incorrect focus, camera shake, or dirty lens | Check focus settings (AF/MF). Use a faster shutter speed or tripod. Clean the lens surfaces. |
| Excessive flare/ghosting | Strong light source hitting the front element | Ensure the lens shade is properly attached. Reposition to avoid direct light sources. |
9. Specifications
| Feature | Detail |
|---|---|
| Brand | ZEISS |
| Model Number | 000000-2030-526 |
| Focal Length | 12 mm |
| Lens Type | Wide Angle |
| Maximum Aperture | f/2.8 |
| Minimum Aperture | f/22 |
| Compatible Mountings | Sony E |
| Product Dimensions | 2.7 x 3.5 x 3.5 inches |
| Item Weight | 9.2 ounces |
| Date First Available | May 13, 2013 |
10. Warranty and Support
For warranty information and technical support, please refer to the official ZEISS website or contact your authorized ZEISS dealer. Keep your proof of purchase for any warranty claims.
11. Safety Information
- Do not expose the lens to extreme temperatures, humidity, or direct sunlight for prolonged periods.
- Avoid dropping or subjecting the lens to strong impacts.
- Keep the lens away from strong magnetic fields.
- Do not attempt to disassemble or repair the lens yourself. Contact qualified service personnel for assistance.
